spec: Trade Plan Head — hierarchical plan-based trading
Plan head outputs 6 params at entry: target_bars, profit_target,
stop_loss, scale_aggression, conviction, asymmetry. Model commits
to plan, bar-by-bar execution constrained. Auto-exit on target/stop/time.
Pearls: P8 learned stops, P9 Kelly conviction, P10 options framework.
Gems: G8 asymmetric R/R, G9 pyramiding, G10 learned termination.
Novels: N13 plan-conditioned Q, N14 counter-plan evaluation,
N15 plan replay priority, N16 ISV-modulated plan parameters.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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